Science ABC
Do bones decompose? How long does it take for bones to decompose?
Ever wonder why bones can survive hundreds of years without decomposing? This is due to the unique composition of bone. Bone is primarily composed of a very stable protein called collagen and the mineral calcium. The association between...
Science ABC
Why Do Humans Have Fingernails And Toenails?
Human fingernails are actually flattened versions of claws. All primates, including ancient ancestors of humans, had claws that supported their broad fingertips. The broad fingertips helped primates maintain a strong grip around objects,...
Science ABC
Why Do Healing Wounds Itch?
When our body sustains a wound, new cells are formed near the edges of the injury and then move down to the base of the wound. Once these cells have migrated to the center of the wound, they connect with other cells nearby. Once this...
Curated Video
Peptide
A molecule made up of a relatively short chain of amino acid building blocks. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Denature
To change the shape of a protein or amino acid molecule, disrupting its normal biological activity, but without changing it chemically. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images...
Curated Video
Myoglobin
A protein found in muscle tissue that performs a similar role to haemoglobin in the blood, as a carrier of oxygen that releases it to cells when required A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using...
Curated Video
Haemoglobin
A protein found in red blood cells that binds and transports oxygen in the blood. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary...
Curated Video
Antibody
A protein produced by the immune system that attacks a harmful agent, such as a virus or bacteria. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...
Curated Video
Antigen
A molecule or fragment of a molecule that triggers an immune response, causing the body to produce specific antibodies against it. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
Antibiotic resistance
The ability of bacteria to survive exposure to an antibiotic, often by producing a protein that disables or prevents transport of the antibiotic into the cell. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds...
Curated Video
Protein
Large molecules that are polymers of amino acids, linked in long chains by peptide bonds, and usually folded into a rough ball. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and...
Curated Video
What Plants Need to Grow
Plants produce oxygen and provide our food, but what do they need to live? Learn why nitrates, phosphates, potassium and magnesium are vital for plant health. Biology - Plants - Learning Points. Understanding how plants grow ensures we...
Curated Video
How Does DNA Make Protein?
DNA carries genetic information to produce proteins and build new cells: a process at the heart of all life on Earth. Biology - Cells And DNA - Learning Points. Deoxyribonucleic Acid (DNA) carry the genetic code required to make protein...
Curated Video
What is Cancer?
Cancers claim more lives every year than any other disease, and come in many forms such as lung cancer, bowl cancer and breast cancer. Why are cancers so deadly and how can we treat them? Biology - Cells And DNA - Learning Points. There...
Curated Video
Food Basics: Proteins
Proteins are at the root of virtually all bodily functions, from growth to metabolism to transporting oxygen around the body. Learn how your body makes or ingests all the protein you need. Chemistry - Chemical Industries - Learning...
Curated Video
Balanced Diet - Nutrition Essentials
Discover which foods are vital for a healthy diet. What should you be eating, how much, and why? Biology - Healthy Living - Learning Points. You need a balanced diet to be healthy. A balanced diet is varied and contains different amounts...
Curated Video
How Do Carb-Free Diets Work?
What would happen if we removed one of our three basic food groups? Discover how reducing your intake of carbohydrates and increasing protein can affect your body. Chemistry - Chemical Industries - Learning Points. A low-carbohydrate,...
Curated Video
Stomach Acid and Antacid
We use the enzyme pepsin and hydrochloric acid to simulate the conditions within the stomach in two boiling tubes. Cooked egg whites are ground and added to two boiling tubes of hydrochloric acid, but one is mixed with a crushed antacid...
Curated Video
Enzyme Action: Trypsin
We demonstrate denaturing by adding the enzyme trypsin to photographic film. Strips of photographic film are added to trypsin solution at different temperatures to determine the optimum conditions for the enzyme. In the right conditions...
Curated Video
Diet and exercise – Odd one out
Four foodstuffs are shown, but which is the odd one out and is not a source of protein? Life processes - Humans and other animals - Diet and exercise Learning Points Fish, nuts and cheese are all rich sources of protein. A Twig Tidbit...
Curated Video
What is a Balanced Diet?
Discover the key to a balanced diet. Life processes - Humans and other animals - Diet and exercise Learning Points A balanced diet contains all the nutrients the body needs. The body also needs protein, vitamins, carbohydrates, fats and...
Curated Video
Obesity - Health Risk
Obesity is a condition that can affect animals and humans. Life processes - Humans and other animals - Diet and exercise Learning Points Obesity can damage your health. Excess weight can damage vital organs such as the lungs and heart....
Science Buddies
Is plant-based milk as protein-packed as dairy milk?
This chemistry science project compares the protein content of plant-based milk to dairy milk.
Curated Video
Eggs Unshelled: Nutritional Powerhouses Explained
Dive into the fascinating world of eggs with Mac Lesggy as he explores how a single cell transforms into a culinary staple. Discover the structural and nutritional composition of eggs, their benefits as a meat alternative, and the myths...